Reproducible magnetic features of high-Tc superconductors in weak fields
Mark Jeffery, Charles Green, Somdev Tyagi, R. Gilmore
DOI 10.1103/PhysRevB.39.9054 · Physical Review B
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Abstract
The microwave absorption spectrum of the high-Tc granular superconductor YBa2Cu3O7−δ measured in a weak magnetic field with small modulation exhibits reproducible oscillations as a function of external field. We have modeled the high-Tc ceramics as a network of superconducting wires weakly coupled at randomly placed nodes. Quantum network simulations of the behavior of this system in a magnetic field reveal strong similarities between the computed magnetoconductance, magnetization, and susceptibility and the experimentally observed microwave absorption spectrum.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 94 | Pressure not reported | onset |
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